package ink.lovejinhu.leetcode;

import java.util.HashSet;

/**
 * @author jinhu
 * created 2021-08-03 18:52
 */
public class Solution_0720 {
    public String longestWord(String[] words) {
        HashSet<String> res = new HashSet<>();
        for (int i = 0; i < words.length; i++) {
            res.add(words[i]);
        }
      return null;
    }
}
